fix ocaml version in gh actions

Author: ManuelLerchner

.github/workflows/odoc.yml

@@ -15,10 +15,10 @@ jobs:
       - name: Checkout tree
         uses: actions/checkout@v4
 
-      - name: Set-up OCaml 5.3.0
-        uses: ocaml/setup-ocaml@v2
+      - name: Set-up OCaml 5
+        uses: ocaml/setup-ocaml@v3
         with:
-          ocaml-compiler: "5.3.0"
+          ocaml-compiler: 5
           # disable cache, otherwise generated documentation is missing files
           dune-cache: false
 

.github/workflows/test.yml

@@ -17,7 +17,7 @@ jobs:
         os:
           - ubuntu-latest
         ocaml-compiler:
-          - "5.3.0"
+          - 5
 
     runs-on: ${{ matrix.os }}
 
@@ -26,7 +26,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Set-up OCaml ${{ matrix.ocaml-compiler }}
-        uses: ocaml/setup-ocaml@v2
+        uses: ocaml/setup-ocaml@v3
         with:
           ocaml-compiler: ${{ matrix.ocaml-compiler }}
           dune-cache: true